linux/system/user.sls ignores 'shell' option if a
user is system. This is quite strange behavior, and it
breaks CIS:
* 5.4.2 Ensure system accounts are non-login

Change-Id: I32dd44ac4fcc1425ea47eb4cf60acf41f6ce0887
Related-Prod: PROD-20764

Fixes: PROD-21350

Change-Id: If5a4473296e4d2cb6a80cb7397ac38a66011f39d

Change-Id: I55ebc405f4534c02c3637bf45100031ea51c81de

saltstack 2017.7 is failing to create user when default group for user is not present, commit which changes this behavior from 2016.3 is a18dbe0c11

Change-Id: I478d632e8aa7303ab2ee32b033478148c18c473d

iteritems() was dropped in recent Python3 releases and items() is compatible
with Python 2.7.

- Add posibility do delete user password
 - Delete any password, if no other option has been passed
 - Allow to pass hash\plain password
 - Allow to unchange password

Change-Id: Id2b7234ca5d4417475b2114e74840292fc57d0de

Change-Id: I2163dbdee38e1b9c5c4dec6611550f16fdf1373b

Change-Id: I9767e07ffe3a808ee9a2de925862ba193b7b612e

Remove sudo files for users, which still exists, but don't have enabled sudo.

- apply review comments
- add visudo check cmd